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authorHerbert Xu <herbert@gondor.apana.org.au>2014-11-27 22:38:12 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2014-11-28 23:33:18 +0800
commit1e104f9a251b46787c3efc2bc9c8c496dead294b (patch)
tree1fb643e0ec624eb1e2145a6411407f8d27a4e4ce /Documentation
parent421d82f5b3e75f94e31875e37d45cdf6a557c120 (diff)
downloadlinux-1e104f9a251b46787c3efc2bc9c8c496dead294b.tar.bz2
crypto: algif_skcipher - Fixed blocking recvmsg
As most (all?) users of algif_skcipher are single-threaded and therefore always write before reading from an algif_skcipher socket, they never block and exercise that code-path. It turns out that code path doesn't even work because we never reload ctx->used after waking up so we never even see the new data and immediately return an error (and a loud WARN_ON). This patch fixes this by always reloading ctx->used. Reported-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Stephan Mueller <smueller@chronox.de>
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